Gear box cover plate



FIG. 1 is a top plan view of a gear box cover plate comprising a transparent window with marking of my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a long side plan view thereof, it being understood that the opposite side not shown is a substantial mirror image thereof;

FIG. 4 is a short side plan view thereof, it being understood that the opposite side not shown is a substantial mirror image thereof; and,

FIG. 5 is a perspective view thereof.

The broken line drawings depicts unclaimed environmental subject matter. 

CLAIM I claim the ornamental design for the gear box cover plate, as shown and described. 